#include<stdio.h>
#include<stdlib.h>
#include<stdbool.h>

typedef struct LNode{
    int data;
    struct LNode *next;
}LNode, *LinkList;

int main(){
    LNode L2;
    LinkList L;
    LinkList L1 = (LNode *)malloc(sizeof(LNode));
    printf("%d, %d, %d\n", sizeof(L), sizeof(L1), sizeof(L2));
    printf("%d, %d\n", sizeof(int), sizeof(int*));
    printf("%d, %d\n", sizeof(LNode), sizeof(LNode *));
    return 0;
}